Abstract: Apparatuses, systems, and methods for selecting a subset of critical patterns from a plurality of patterns of a design layout. In some embodiments, the method includes accessing diffraction order data based on the plurality of patterns that represent features to be formed on at least a portion of a substrate, the diffraction order data including a plurality of peaks corresponding to the plurality of patterns. The method also includes identifying a subset of representative peaks from the plurality of peaks according to one or more grouping criteria, the identifying including identifying a first representative peak that covers another peak colinear with the first representative peak, wherein the first representative peak is a discrete peak having a frequency that is an integer multiple of frequency of another discrete peak. The method further includes selecting the subset of critical patterns corresponding to the subset of representative peaks.

Abstract: The invention relates to a tank used in an engine cooling system, the engine cooling system, and a work machine. The tank includes a housing and a partition which dividing the housing into an exhaust tank and an expansion tank which are sealed from each other. The exhaust tank includes a first connecting pipe and a second connecting pipe, the first connecting pipe being adapted to be fluidly connected to an engine cylinder jacket of the engine cooling system to introduce coolant into the exhaust tank, and the second connecting pipe being adapted to be fluidly connected to a heat exchanger of the engine cooling system to discharge the coolant into the heat exchanger. The expansion tank includes a third connecting pipe adapted to be fluidly connected to the engine cooling system.